Patterns of vertebrate diversity and protection in Brazil

Most conservation decisions take place at national or finer spatial scales. Providing useful information at such decision-making scales is essential for guiding the practice of conservation. Brazil is one of the world’s megadiverse countries, and consequently decisions about conservation in the country have a disproportionate impact on the survival of global biodiversity. For three groups of terrestrial vertebrates (birds, mammals, and amphibians), we examined geographic patterns of diversity and protection in Brazil, including that of endemic, small-ranged, and threatened species. To understand potential limitations of the data, we also explored how spatial bias in collection localities may influence the perceived patterns of diversity. The highest overall species richness is in the Amazon and Atlantic Forests, while the Atlantic Forest dominates in terms of country endemics and small-ranged species. Globally threatened species do not present a consistent pattern. Patterns for birds we...绝大多数保护决策均在国家尺度或更精细的空间尺度下制定。在此类决策尺度下提供有效信息，对指导保护实践至关重要。巴西是全球生物多样性超级大国之一，因此该国的保护决策对全球生物多样性的存续有着不成比例的重大影响。针对鸟类、哺乳类、两栖类三类陆生脊椎动物（terrestrial vertebrates），本研究分析了巴西境内的多样性与保护现状的地理分布模式，涵盖特有物种（endemic species）、狭域分布物种（small-ranged species）以及受威胁物种（threatened species）的相关情况。为明确数据集可能存在的局限性，本研究还探讨了采集地点的空间偏差如何影响多样性观测格局。整体物种丰富度（species richness）最高的区域为亚马逊雨林与大西洋森林；而就巴西特有物种与狭域分布物种而言，大西洋森林则占据主导地位。全球受威胁物种的分布并未呈现出统一的格局。鸟类的分布模式我们……